EP1078021A1 - Poudre magnetique-abrasive et son procede de production - Google Patents

Poudre magnetique-abrasive et son procede de production

Info

Publication number
EP1078021A1
EP1078021A1 EP99911167A EP99911167A EP1078021A1 EP 1078021 A1 EP1078021 A1 EP 1078021A1 EP 99911167 A EP99911167 A EP 99911167A EP 99911167 A EP99911167 A EP 99911167A EP 1078021 A1 EP1078021 A1 EP 1078021A1
Authority
EP
European Patent Office
Prior art keywords
magnetic
powder
abrasive
component
abrasive powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99911167A
Other languages
German (de)
English (en)
Other versions
EP1078021A4 (fr
Inventor
Savva Feygin
Gennady Kremen
Leonid Igelshtyn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scientific Manufacturing Technologies Inc
Original Assignee
Scientific Manufacturing Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scientific Manufacturing Technologies Inc filed Critical Scientific Manufacturing Technologies Inc
Publication of EP1078021A1 publication Critical patent/EP1078021A1/fr
Publication of EP1078021A4 publication Critical patent/EP1078021A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se

Definitions

  • the present invention relates to a magnetic-abrasive powder and to a method of producing such a powder.
  • a magnetic-abrasive powder is utilized for magnetic-abrasive machining of parts.
  • the magnetic-abrasive powder is introduced into a magnetic field and applied to a surface of the powder to be machined by a magnetic force solely or with additional forces.
  • Some magnetic-abrasive powders are disclosed for example in Bulgarian patent no. 04,451 ,269; Soviet Inventor's Certificates No. 814700, 799914, 755538, 737203, 929423, 835643, 831599, Japanese patent 2,249,967, and publications Anzai, et al "Fabrication of Ma Using Plasma Powder Melting Method.
  • the known methods of manufacturing of the magnetic-abrasive powder include sintering or melting of mixtures of Fe with abrasive materials. These methods are substantially complicated. They require high temperature and vacuum furnaces and presses. As a result the existing methods are expensive, they can be implemented only with complicated equipment, and they require skilled personnel.
  • a magnetic-abrasive powder which has a magnetic component, such as for example iron powder , an abrasive component, such as for example diamond, carbide, nitride, boride, oxide powder, and a glue which connects or binds the two first mentioned components with one another.
  • a magnetic component such as for example iron powder
  • an abrasive component such as for example diamond, carbide, nitride, boride, oxide powder
  • a glue which connects or binds the two first mentioned components with one another.
  • the method in accordance with the present invention includes preparation of a magnetic component, such as iron powder and the like, preparation of the abrasive component such as diamond, carbide, nitride, boride or oxide powder, and gluing of particles of these components with one another.
  • a magnetic component such as iron powder and the like
  • preparation of the abrasive component such as diamond, carbide, nitride, boride or oxide powder
  • the magnetic component and the abrasive component are mixed with one another.
  • the glue impregnates the mixture, moisturizes the components, and surrounds the particles of the powder with a thin layer.
  • the thusly produced mixture is hardened, and then comminuted for example by crushing so as to provide a magnetic-abrasive powder fracture of a desired size.
  • a magnetic-abrasive powder in accordance with the present invention includes a magnetic component.
  • the magnetic component can be for example a powder of a magnetic material, for example iron. Conventionally iron is inexpensive and has high magnetic properties.
  • the inventive magnetic-abrasive powder further includes an abrasive component.
  • the abrasive component can be the powder of a desired abrasive, such as for example diamond, carbide, nitride, boride, oxide powder, etc.
  • the magnetic component and the abrasive component are intermixed and connected or bound with one another.
  • an adhesive component is utilized for connecting or binding of these components, or more particularly of the particles of the magnetic powder and the abrasive powder.
  • the adhesive component forthe magnetic-abrasive powder can include for example a cyanacrylate glue, for example cyanacrylate monomer in a liquid phase of the series 100, 200, 400, 800 etc., which is known commercially as an industrial crazy glue.
  • inventive magnetic-abrasive powder includes in percentages by weightthe following components:
  • the magnetic-abrasive powder in accordance with the present invention is produced in the following manner. First of all, the magnetic powder and the abrasive powder are prepared. Then they are mixed by known mixing methods to provide a uniform distribution of the components in the mixture. The thusiy produced mixture is impregnated with the adhesive. Since the adhesive have high adhesive property and moisturizing property, it impregnates the whole mixture and surrounds the particles of the powder mixture with a thin layer of film. The impregnation and surrounding process takes less than 1 minute. The thusiy produced mixture is hardened at room temperature. Full hardening can be achieved in about 4 hours.
  • the thusiy produced hardened mixture has a high aggregate strength.
  • the material is treated with known methods for its comminution during 0.5-1 hour, for example in a plate crusher, mill, and the like, depending on the desired size.
  • the thusiy produced magnetic-abrasive powder is then sorted over standard sieves to produce fractions of different sizes.
  • the waste of the magnetic abrasive -5- powder is minimal and it does not exceed 1-2% of the quantity of the initial material.
  • the method is highly economical, it does not require high temperature and vacuum furnaces and presses, the material removal rate with the magnetic-abrasive powder in accordance with the present invention is higher than with conventional magnetic-abrasive powders obtained by conventional methods of pressing or rolling with subsequent sintering in vacuum or heating furnaces with a protective atmosphere as well as by melting of iron with abrasive. Also, the waste is substantially lower, since in the conventional methods the waste after milling constitutes approximately 8-12% of the initial quantity.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Une poudre magnétique-abrasive comprend une composante magnétique d'une poudre d'un matériau magnétique, une composante abrasive d'une poudre d'un matériau abrasif et un adhésif collant ensemble les particules du matériau magnétique aux particules du matériau abrasif.
EP99911167A 1998-04-06 1999-03-04 Poudre magnetique-abrasive et son procede de production Withdrawn EP1078021A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/055,449 US5846270A (en) 1998-04-06 1998-04-06 Magnetic-abrasive powder and method of producing the same
US55449 1998-04-06
PCT/US1999/004949 WO1999051693A1 (fr) 1998-04-06 1999-03-04 Poudre magnetique-abrasive et son procede de production

Publications (2)

Publication Number Publication Date
EP1078021A1 true EP1078021A1 (fr) 2001-02-28
EP1078021A4 EP1078021A4 (fr) 2001-05-23

Family

ID=21997879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911167A Withdrawn EP1078021A4 (fr) 1998-04-06 1999-03-04 Poudre magnetique-abrasive et son procede de production

Country Status (12)

Country Link
US (1) US5846270A (fr)
EP (1) EP1078021A4 (fr)
JP (1) JP2002510738A (fr)
KR (1) KR20010072566A (fr)
CN (1) CN1299399A (fr)
AU (1) AU760198B2 (fr)
CA (1) CA2327683A1 (fr)
IL (1) IL138904A0 (fr)
MY (1) MY116290A (fr)
NZ (1) NZ507505A (fr)
TW (1) TW473523B (fr)
WO (1) WO1999051693A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100390634B1 (ko) * 2000-08-19 2003-07-07 김희남 폐 초경합금 공구를 자기연마재로 재활용하는 방법 및 그 연마재를 이용한 자기연마방법
CN101481597B (zh) * 2009-01-17 2012-04-25 山东理工大学 磁性磨料的常压烧结方法
CN109890930B (zh) * 2016-10-25 2021-03-16 3M创新有限公司 可磁化磨料颗粒及其制备方法
WO2018080705A1 (fr) * 2016-10-25 2018-05-03 3M Innovative Properties Company Particules abrasives agglomérées magnétisables, articles abrasifs et leurs procédés de fabrication
EA032945B1 (ru) * 2016-12-21 2019-08-30 Государственное Научное Учреждение "Объединенный Институт Машиностроения Национальной Академии Наук Беларуси" Способ получения композиционного магнитно-абразивного порошка
US20210155836A1 (en) * 2018-04-12 2021-05-27 3M Innovative Properties Company Magnetizable abrasive particle and method of making the same
CN114752306A (zh) * 2022-04-19 2022-07-15 长沙埃福思科技有限公司 一种用于集成显示屏的铁磁性抛光液及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006500A1 (fr) * 1997-08-01 1999-02-11 Minnesota Mining And Manufacturing Company Articles abrasifs comportant un melange de particules abrasives

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286022A (en) * 1979-01-19 1981-08-25 Minnesota Mining And Manufacturing Company Coating of fine particles in polyurethane block copolymer binder
JPS578917A (en) * 1980-06-20 1982-01-18 Tdk Corp Cleaning tape for magnetic recorder
JPS61250084A (ja) * 1985-04-30 1986-11-07 Kureha Chem Ind Co Ltd 磁気研磨用の複合砥粒粒子およびその製造法
JPH0682464B2 (ja) * 1985-12-07 1994-10-19 富士写真フイルム株式会社 磁性塗料の製造方法
JPH01252366A (ja) * 1988-04-01 1989-10-09 Tdk Corp ラッピングテープ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006500A1 (fr) * 1997-08-01 1999-02-11 Minnesota Mining And Manufacturing Company Articles abrasifs comportant un melange de particules abrasives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9951693A1 *

Also Published As

Publication number Publication date
AU2987299A (en) 1999-10-25
TW473523B (en) 2002-01-21
US5846270A (en) 1998-12-08
NZ507505A (en) 2003-04-29
CA2327683A1 (fr) 1999-10-14
IL138904A0 (en) 2001-11-25
CN1299399A (zh) 2001-06-13
KR20010072566A (ko) 2001-07-31
MY116290A (en) 2003-12-31
AU760198B2 (en) 2003-05-08
JP2002510738A (ja) 2002-04-09
EP1078021A4 (fr) 2001-05-23
WO1999051693A1 (fr) 1999-10-14

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